*{
    text-decoration: none;
    margin:0;
    padding:0;
}
ul,ol{
    list-style: none;
}
.container{
    width: 1200px;
    margin: 0 auto;
}
.clearfix::after{
    content: "";
    display: block;
    clear: both;
}
.mt{
    margin-top: 15px;
}
a{
    text-decoration: none;
}
.fl{
    float: left;
}
.fr{
    float: right;
}
img {
    vertical-align: middle;
}
.mt20{
    margin-top: 20px;
}